Rear wired, its easier I had a front one with a peq last time it was really clean looking but taking it apart is a bitch. Now I have a crane stock with a 2000 mah nimh. Although I have the charger/balancer to support a lipo and pretty sure the internals Of my current setup are built for lipo use Im still staying away from Lipo.
There is a reason why Liposacks were made. Look em up so you would know what it means. One less thing to worry about. Remember electronics occasionally fails, fans die and FETs fry.